In the 1920s the submarines s-50 and s-51 operated together. Then, after a fatal collision sank the s-51, her sister stood vigil over her grave.
Categories: Ships and Submarines
 
 
Thank you to the Mario Family Foundation for enabling the digitization of the U.S. Naval Institute’s Photo Archive. The physical photos in the Photo Archive are stored in the Mildred M. Mario Photo Archive Room located at the U.S. Naval Institute’s Headquarters in Annapolis, MD.

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